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Integrated braking energy recovery system and integrated braking energy recovery method

A braking energy recovery and integrated technology, applied in the field of vehicles, can solve the problems such as coupling and switching are easy to produce shock, the electronic vacuum pump cannot provide, and the friction braking force is not adjusted, so as to achieve both safety and comfort, shorten braking Distance, light weight effect

Pending Publication Date: 2021-09-03
CHINA FIRST AUTOMOBILE
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Problems solved by technology

[0005] In this way, the motor feedback braking force is directly superimposed on the original friction braking force, the original friction braking force is not adjusted, the energy recovery rate is low, and the coupling and switching of the motor feedback braking and friction braking is likely to produce impact, resulting in poor braking comfort
When in plateau areas with relatively low air pressure, the electronic vacuum pump cannot provide the same high vacuum degree as in plain areas, resulting in poor power assist of the vacuum booster, and the pedal force will become larger, which will affect the user's use

Method used

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Embodiment Construction

[0046] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0047] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct...

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Abstract

The invention belongs to the technical field of vehicles, and discloses an integrated braking energy recovery system and an integrated braking energy recovery method. The integrated braking energy recovery system comprises a driver braking intention module for acquiring a driver braking intention; a hydraulic braking force control module for realizing complete decoupling of hydraulic braking force in a brake pedal and a wheel cylinder; a regenerative braking force obtaining module for obtaining current regenerative braking force; a regenerative braking force request module which requests that target regenerative braking force can be generated and controls a driving motor and generates electricity according to the target regenerative braking force so as to convert kinetic energy of the wheel cylinder into electric energy and store the electric energy in a battery; the braking force coordination module coordinates the hydraulic braking force control module and the regenerative braking force request module according to the driver braking intention and the current regenerative braking force. According to the integrated braking energy recovery system, the braking force coordination module is used for coordinating and distributing the regenerative braking force request module and the hydraulic braking force control module, and therefore efficient recovery of braking energy is achieved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to an integrated braking energy recovery system and an integrated braking energy recovery method. Background technique [0002] With the rapid development of new energy technologies for automobiles, one of the ways for electric vehicles to improve energy utilization is braking energy recovery. Braking energy recovery is specifically to convert the kinetic energy of the car when braking into electric energy through the motor and store it in the battery, and then use the electric energy in traction drive, avoiding the loss of energy into frictional heat energy, thereby improving the use of energy Efficiency, thereby increasing the driving range of electric vehicles. [0003] The traditional braking system includes a brake master cylinder and a pressure building unit. The brake master cylinder uses a vacuum booster to realize auxiliary pressure build-up. The pressure build-up unit is...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/17B60T8/171B60L7/02
CPCB60T8/17B60T8/171B60L7/02
Inventor 李林润张建姜洪伟厉健峰李子玉王宇袁文建
Owner CHINA FIRST AUTOMOBILE
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